"tend to stay married" and "stay married": I must argue against this generalization. Staying married should not be the goal or the focus. I know this is an age old expectation. My experience is that people should focus on being in relationship with others who are genuine, caring and healthy. And we as people should focus on being healthy individually and in relationship. We should not tolerate being treated poorly (even to "stay married"). It is healthy and whole relationships that hold value not the institution of "marriage". Also it seems that within those words is an assumption that we /they have the choice to stay married. That is not always a choice that we /they can make. And very often "staying married" is the worst choice and can be a incredibly destructive choice. For example, I know many people that "stay married" and many people flap about their pride of being married to the "same woman" for x number of years. Staying or length of marriage has no value. Genuine, healthy and positive relationships have ultimate value- at least in my view.